Comrex BRIC-Link II, Product Manual

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PERFORMANCE TAB
The Performance Tab includes informa on on data transmission and recep on rates from BRIC-Link II to ac ve
remote connec ons. This allows for real- me monitoring of network quality during connec ons. Several headers
are listed on this page and will drop down more informa on when clicked.
ACTIVE CONNECTION
Clicking the header “Ac ve Connec on” will show a basic chart of real- me codec receive performance. The fi rst
table, as shown in Figure 17 , will give numeric sta s cs for the current ac ve connec on. If several connec ons are
ac ve (such as with “Mul streaming”) each will appear in a separate row.
Figure 18 displays a real- me graph which shows only sta s cs for the incoming data of the local codec. If a
connec on uses the op onal CrossLock reliability layer, addi onal informa on will be shown under the “Crosslock”
header.
The le graph represents the work of the Ji er Bu ff er Manager . The area of most interest is the light blue area as
shown in Figure 18 , which illustrates a spread of ji er values (referenced to the current play out pointer) over the
last second. If this area covers a large span, the rela ve ji er is high. If the light blue sec on of the graph is small
or invisible over a me period, less ji er is present. Based on the historical value of this ji er
fi gure, the bu ff er
manager will expand or contract the receive bu ff er (lengthening or shortening overall delay). The me interval over
which this measurement is assessed is called the “ji er window” and is adjustable in the “Advanced Pro fi le” editor.
The work of the Ji er Bu ff er Manager is shown by the yellow line, which is the target bu ff er delay that the system is
trying to achieve, based on measurements calculated over the ji er window.
The graph on the right side shows a real- me and historical representa on of frame loss. If the decoder does not
receive packets in me, the chart will show a red bar indica ng the percentage of lost packets over a one-second
interval.